FAILED: patch "[PATCH] spi: pl022: fix controller deregistration" failed to apply to 5.15-stable tree

[<gregkh@linuxfoundation.org>]

The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x 994b33366be9148240690e3e94bffe17c4d89458
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2026051529-woven-tradition-4188@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..

Possible dependencies:



thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 994b33366be9148240690e3e94bffe17c4d89458 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Fri, 10 Apr 2026 10:17:38 +0200
Subject: [PATCH] spi: pl022: fix controller deregistration

Make sure to deregister the controller before releasing underlying
resources like DMA during driver unbind.

Fixes: b43d65f7e818 ("[ARM] 5546/1: ARM PL022 SSP/SPI driver v3")
Cc: stable@vger.kernel.org	# 2.6.31
Cc: Linus Walleij <linusw@kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260410081757.503099-9-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index bd1d28caa51e..9c0211f94fd0 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -1956,7 +1956,7 @@ static int pl022_probe(struct amba_device *adev, const struct amba_id *id)
 
 	/* Register with the SPI framework */
 	amba_set_drvdata(adev, pl022);
-	status = devm_spi_register_controller(&adev->dev, host);
+	status = spi_register_controller(host);
 	if (status != 0) {
 		dev_err_probe(&adev->dev, status,
 			      "problem registering spi host\n");
@@ -1997,6 +1997,10 @@ pl022_remove(struct amba_device *adev)
 	if (!pl022)
 		return;
 
+	spi_controller_get(pl022->host);
+
+	spi_unregister_controller(pl022->host);
+
 	/*
 	 * undo pm_runtime_put() in probe.  I assume that we're not
 	 * accessing the primecell here.
@@ -2008,6 +2012,8 @@ pl022_remove(struct amba_device *adev)
 		pl022_dma_remove(pl022);
 
 	amba_release_regions(adev);
+
+	spi_controller_put(pl022->host);
 }
 
 #ifdef CONFIG_PM_SLEEP